<?php
class ModelBlogPost extends Model {
	public function addPost($data) {
		$this->db->query("INSERT INTO " . DB_PREFIX . "blog_post SET date_available = '" . $this->db->escape($data['date_available']) . "', author_id = '" . (int)$data['author_id'] . "', status = '" . (int)$data['status'] . "', sort_order = '" . (int)$data['sort_order'] . "', date_added = NOW()");
		
		$post_id = $this->db->getLastId();
		
		if (isset($data['image'])) {
			$this->db->query("UPDATE " . DB_PREFIX . "blog_post SET image = '" . $this->db->escape(html_entity_decode($data['image'], ENT_QUOTES, 'UTF-8')) . "' WHERE post_id = '" . (int)$post_id . "'");
		}
		
		foreach ($data['post_description'] as $language_id => $value) {
			$this->db->query("INSERT INTO " . DB_PREFIX . "blog_post_description SET post_id = '" . (int)$post_id . "', language_id = '" . (int)$language_id . "', name = '" . $this->db->escape($value['name']) . "', meta_keyword = '" . $this->db->escape($value['meta_keyword']) . "', meta_description = '" . $this->db->escape($value['meta_description']) . "', description = '" . $this->db->escape($value['description']) . "', tag = '" . $this->db->escape($value['tag']) . "'");
		}
		
		if (isset($data['post_store'])) {
			foreach ($data['post_store'] as $store_id) {
				$this->db->query("INSERT INTO " . DB_PREFIX . "blog_post_to_store SET post_id = '" . (int)$post_id . "', store_id = '" . (int)$store_id . "'");
			}
		}
		
		if (isset($data['post_image'])) {
			foreach ($data['post_image'] as $post_image) {
				$this->db->query("INSERT INTO " . DB_PREFIX . "blog_post_image SET post_id = '" . (int)$post_id . "', image = '" . $this->db->escape(html_entity_decode($post_image['image'], ENT_QUOTES, 'UTF-8')) . "', sort_order = '" . (int)$post_image['sort_order'] . "'");
			}
		}
			
		if (isset($data['post_category'])) {
			foreach ($data['post_category'] as $category_id) {
				$this->db->query("INSERT INTO " . DB_PREFIX . "blog_post_to_category SET post_id = '" . (int)$post_id . "', category_id = '" . (int)$category_id . "'");
			}
		}
		
		if (isset($data['post_related'])) {
			foreach ($data['post_related'] as $related_id) {
				$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_related WHERE post_id = '" . (int)$post_id . "' AND related_id = '" . (int)$related_id . "'");
				$this->db->query("INSERT INTO " . DB_PREFIX . "blog_post_related SET post_id = '" . (int)$post_id . "', related_id = '" . (int)$related_id . "'");
				$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_related WHERE post_id = '" . (int)$related_id . "' AND related_id = '" . (int)$post_id . "'");
				$this->db->query("INSERT INTO " . DB_PREFIX . "blog_post_related SET post_id = '" . (int)$related_id . "', related_id = '" . (int)$post_id . "'");
			}
		}

		if (isset($data['post_layout'])) {
			foreach ($data['post_layout'] as $store_id => $layout) {
				if ($layout['layout_id']) {
					$this->db->query("INSERT INTO " . DB_PREFIX . "blog_post_to_layout SET post_id = '" . (int)$post_id . "', store_id = '" . (int)$store_id . "', layout_id = '" . (int)$layout['layout_id'] . "'");
				}
			}
		}
						
		if ($data['keyword']) {
			$this->db->query("INSERT INTO " . DB_PREFIX . "url_alias SET query = 'post_id=" . (int)$post_id . "', keyword = '" . $this->db->escape($data['keyword']) . "'");
		}
						
		$this->cache->delete('post');
	}
	
	public function editPost($post_id, $data) {
		$this->db->query("UPDATE " . DB_PREFIX . "blog_post SET date_available = '" . $this->db->escape($data['date_available']) . "', author_id = '" . (int)$data['author_id'] . "', status = '" . (int)$data['status'] . "', sort_order = '" . (int)$data['sort_order'] . "', date_modified = NOW() WHERE post_id = '" . (int)$post_id . "'");

		if (isset($data['image'])) {
			$this->db->query("UPDATE " . DB_PREFIX . "blog_post SET image = '" . $this->db->escape(html_entity_decode($data['image'], ENT_QUOTES, 'UTF-8')) . "' WHERE post_id = '" . (int)$post_id . "'");
		}
		
		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_description WHERE post_id = '" . (int)$post_id . "'");
		
		foreach ($data['post_description'] as $language_id => $value) {
			$this->db->query("INSERT INTO " . DB_PREFIX . "blog_post_description SET post_id = '" . (int)$post_id . "', language_id = '" . (int)$language_id . "', name = '" . $this->db->escape($value['name']) . "', meta_keyword = '" . $this->db->escape($value['meta_keyword']) . "', meta_description = '" . $this->db->escape($value['meta_description']) . "', description = '" . $this->db->escape($value['description']) . "', tag = '" . $this->db->escape($value['tag']) . "'");
		}

		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_to_store WHERE post_id = '" . (int)$post_id . "'");

		if (isset($data['post_store'])) {
			foreach ($data['post_store'] as $store_id) {
				$this->db->query("INSERT INTO " . DB_PREFIX . "blog_post_to_store SET post_id = '" . (int)$post_id . "', store_id = '" . (int)$store_id . "'");
			}
		}
		
		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_image WHERE post_id = '" . (int)$post_id . "'");
		
		if (isset($data['post_image'])) {
			foreach ($data['post_image'] as $post_image) {
				$this->db->query("INSERT INTO " . DB_PREFIX . "blog_post_image SET post_id = '" . (int)$post_id . "', image = '" . $this->db->escape(html_entity_decode($post_image['image'], ENT_QUOTES, 'UTF-8')) . "', sort_order = '" . (int)$post_image['sort_order'] . "'");
			}
		}
		
		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_to_category WHERE post_id = '" . (int)$post_id . "'");
		
		if (isset($data['post_category'])) {
			foreach ($data['post_category'] as $category_id) {
				$this->db->query("INSERT INTO " . DB_PREFIX . "blog_post_to_category SET post_id = '" . (int)$post_id . "', category_id = '" . (int)$category_id . "'");
			}		
		}

		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_related WHERE post_id = '" . (int)$post_id . "'");
		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_related WHERE related_id = '" . (int)$post_id . "'");

		if (isset($data['post_related'])) {
			foreach ($data['post_related'] as $related_id) {
				$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_related WHERE post_id = '" . (int)$post_id . "' AND related_id = '" . (int)$related_id . "'");
				$this->db->query("INSERT INTO " . DB_PREFIX . "blog_post_related SET post_id = '" . (int)$post_id . "', related_id = '" . (int)$related_id . "'");
				$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_related WHERE post_id = '" . (int)$related_id . "' AND related_id = '" . (int)$post_id . "'");
				$this->db->query("INSERT INTO " . DB_PREFIX . "blog_post_related SET post_id = '" . (int)$related_id . "', related_id = '" . (int)$post_id . "'");
			}
		}

		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_to_layout WHERE post_id = '" . (int)$post_id . "'");

		if (isset($data['post_layout'])) {
			foreach ($data['post_layout'] as $store_id => $layout) {
				if ($layout['layout_id']) {
					$this->db->query("INSERT INTO " . DB_PREFIX . "blog_post_to_layout SET post_id = '" . (int)$post_id . "', store_id = '" . (int)$store_id . "', layout_id = '" . (int)$layout['layout_id'] . "'");
				}
			}
		}
						
		$this->db->query("DELETE FROM " . DB_PREFIX . "url_alias WHERE query = 'post_id=" . (int)$post_id. "'");
		
		if ($data['keyword']) {
			$this->db->query("INSERT INTO " . DB_PREFIX . "url_alias SET query = 'post_id=" . (int)$post_id . "', keyword = '" . $this->db->escape($data['keyword']) . "'");
		}
						
		$this->cache->delete('post');
	}
	
	
	public function deletePost($post_id) {
		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post WHERE post_id = '" . (int)$post_id . "'");
		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_description WHERE post_id = '" . (int)$post_id . "'");
		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_image WHERE post_id = '" . (int)$post_id . "'");
		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_related WHERE post_id = '" . (int)$post_id . "'");
		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_related WHERE related_id = '" . (int)$post_id . "'");
		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_to_category WHERE post_id = '" . (int)$post_id . "'");
		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_to_layout WHERE post_id = '" . (int)$post_id . "'");
		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_post_to_store WHERE post_id = '" . (int)$post_id . "'");
		$this->db->query("DELETE FROM " . DB_PREFIX . "blog_review WHERE post_id = '" . (int)$post_id . "'");
		
		$this->db->query("DELETE FROM " . DB_PREFIX . "url_alias WHERE query = 'post_id=" . (int)$post_id. "'");
		
		$this->cache->delete('post');
	}
	
	public function getPost($post_id) {
		$query = $this->db->query("SELECT DISTINCT *, (SELECT keyword FROM " . DB_PREFIX . "url_alias WHERE query = 'post_id=" . (int)$post_id . "') AS keyword FROM " . DB_PREFIX . "blog_post p LEFT JOIN " . DB_PREFIX . "blog_post_description pd ON (p.post_id = pd.post_id) WHERE p.post_id = '" . (int)$post_id . "' AND pd.language_id = '" . (int)$this->config->get('config_language_id') . "'");
				
		return $query->row;
	}
	
	public function getPosts($data = array()) {
		if ($data) {
			$sql = "SELECT * FROM " . DB_PREFIX . "blog_post p LEFT JOIN " . DB_PREFIX . "blog_post_description pd ON (p.post_id = pd.post_id) ";
			
			if (!empty($data['filter_category_id'])) {
				$sql .= " LEFT JOIN " . DB_PREFIX . "blog_post_to_category p2c ON (p.post_id = p2c.post_id)";			
			}
					
			$sql .= " WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "'"; 
			
			if (!empty($data['filter_name'])) {
				$sql .= " AND LCASE(pd.name) LIKE '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "%'";
			}
			
			if (!empty($data['filter_author_id'])) {
				$sql .= " AND p.author_id= '" . (int)$data['filter_author_id'] . "'";
			}
			
			if (isset($data['filter_status']) && !is_null($data['filter_status'])) {
				$sql .= " AND p.status = '" . (int)$data['filter_status'] . "'";
			}

			if (!empty($data['filter_date_added'])) {
				$sql .= " AND DATE(p.date_added) = DATE('" . $this->db->escape($data['filter_date_added']) . "')";
			}
			
			if (!empty($data['filter_date_modified'])) {
				$sql .= " AND DATE(p.date_modified) = DATE('" . $this->db->escape($data['filter_date_modified']) . "')";
			}
					
			if (!empty($data['filter_category_id'])) {
				if (!empty($data['filter_sub_category'])) {
					$implode_data = array();
					
					$implode_data[] = "category_id = '" . (int)$data['filter_category_id'] . "'";
					
					$this->load->model('blog/category');
					
					$categories = $this->model_blog_category->getCategories($data['filter_category_id']);
					
					foreach ($categories as $category) {
						$implode_data[] = "p2c.category_id = '" . (int)$category['category_id'] . "'";
					}
					
					$sql .= " AND (" . implode(' OR ', $implode_data) . ")";			
				} else {
					$sql .= " AND p2c.category_id = '" . (int)$data['filter_category_id'] . "'";
				}
			}
			
			if ($this->user->getGroupId() != $this->config->get('blog_admin_group_id') ) {
				$sql .= " AND p.author_id ='" . (int)$this->user->getId() . "'";
			}
			
			$sql .= " GROUP BY p.post_id";
						
			$sort_data = array(
				'pd.name',
				'p.author_id',
				'p.status',
				'p.sort_order'
			);	
			
			if (isset($data['sort']) && in_array($data['sort'], $sort_data)) {
				$sql .= " ORDER BY " . $data['sort'];	
			} else {
				$sql .= " ORDER BY pd.post_id";	
			}
			
			if (isset($data['order']) && ($data['order'] == 'DESC')) {
				$sql .= " DESC";
			} else {
				$sql .= " ASC";
			}
		
			if (isset($data['start']) || isset($data['limit'])) {
				if ($data['start'] < 0) {
					$data['start'] = 0;
				}				

				if ($data['limit'] < 1) {
					$data['limit'] = 20;
				}	
			
				$sql .= " LIMIT " . (int)$data['start'] . "," . (int)$data['limit'];
			}	
			
			$query = $this->db->query($sql);
		
			return $query->rows;
		} else {
			$post_data = $this->cache->get('post.' . (int)$this->config->get('config_language_id') . '.' . (int)$this->config->get('config_store_id'));
		
			if (!$post_data) {
				$sql =  "SELECT * FROM " . DB_PREFIX . "blog_post p 
						 LEFT JOIN " . DB_PREFIX . "blog_post_description pd ON (p.post_id = pd.post_id) 
						 WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "'";
				
				if ($this->user->getGroupId() != $this->config->get('blog_admin_group_id') ) {
					$sql .= " AND p.author_id ='" . (int)$this->user->getId() . "'";
				}
				
				$sql .= " ORDER BY pd.name ASC";
				
				$query = $this->db->query($sql);
	
				$post_data = $query->rows;
			
				$this->cache->set('post.' . (int)$this->config->get('config_language_id') . '.' . (int)$this->config->get('config_store_id'), $blog_post_data);
			}	
	
			return $post_data;
		}
	}
	
	public function getPostsByCategoryId($category_id) {
		$query = $this->db->query("SELECT * FROM " . DB_PREFIX . "blog_post p LEFT JOIN " . DB_PREFIX . "blog_post_description pd ON (p.post_id = pd.post_id) LEFT JOIN " . DB_PREFIX . "blog_post_to_category p2c ON (p.post_id = p2c.post_id) WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "' AND p2c.category_id = '" . (int)$category_id . "' ORDER BY pd.name ASC");
								  
		return $query->rows;
	} 
	
	public function getPostDescriptions($post_id) {
		$post_description_data = array();
		
		$query = $this->db->query("SELECT * FROM " . DB_PREFIX . "blog_post_description WHERE post_id = '" . (int)$post_id . "'");
		
		foreach ($query->rows as $result) {
			$post_description_data[$result['language_id']] = array(
				'name'             => $result['name'],
				'description'      => $result['description'],
				'meta_keyword'     => $result['meta_keyword'],
				'meta_description' => $result['meta_description'],
				'tag'              => $result['tag']
			);
		}
		
		return $post_description_data;
	}

	public function getPostAuthor($author_id){
		$this->load->model('user/user');
		
		$user_info = $this->model_user_user->getUser($author_id);
		
		return $this->getAuthorNameRelatedToPostedBy($user_info);
	}
	
	public function getAuthors(){
		$auhors_data = array();
		
		$this->load->model('user/user');
		
		$authors = $this->model_user_user->getUsers();
		
		if ($authors){
			foreach ($authors as $author) {
				$auhors_data[] = array(
					'author_id' => $author['user_id'],
					'name'      => $this->getAuthorNameRelatedToPostedBy($author),
					'firstname' => $author['firstname'],
					'lastname'  => $author['lastname'],
					'username'  => $author['username']
				);
			}
		}
		
		return $auhors_data;
	}
	
	public function getAuthorNameRelatedToPostedBy($user_info){
		
		$posted_by = $user_info['firstname'] . ' ' . $user_info['lastname'];
		
		if ($this->config->get('blog_posted_by') == 'firstname lastname'){
			$posted_by = $user_info['firstname'] . ' ' . $user_info['lastname'];
		} elseif ($this->config->get('blog_posted_by') == 'lastname firstname') {
			$posted_by = $user_info['lastname'] . ' ' . $user_info['firstname'];
		} elseif ($this->config->get('blog_posted_by') == 'username'){
			$posted_by = $user_info['username'];
		} 
		
		return $posted_by;
	}
	
	public function getPostImages($post_id) {
		$query = $this->db->query("SELECT * FROM " . DB_PREFIX . "blog_post_image WHERE post_id = '" . (int)$post_id . "'");
		
		return $query->rows;
	}
	
	public function getPostStores($post_id) {
		$post_store_data = array();
		
		$query = $this->db->query("SELECT * FROM " . DB_PREFIX . "blog_post_to_store WHERE post_id = '" . (int)$post_id . "'");

		foreach ($query->rows as $result) {
			$post_store_data[] = $result['store_id'];
		}
		
		return $post_store_data;
	}

	public function getPostLayouts($post_id) {
		$post_layout_data = array();
		
		$query = $this->db->query("SELECT * FROM " . DB_PREFIX . "blog_post_to_layout WHERE post_id = '" . (int)$post_id . "'");
		
		foreach ($query->rows as $result) {
			$post_layout_data[$result['store_id']] = $result['layout_id'];
		}
		
		return $post_layout_data;
	}
		
	public function getPostCategories($post_id) {
		$post_category_data = array();
		
		$query = $this->db->query("SELECT * FROM " . DB_PREFIX . "blog_post_to_category WHERE post_id = '" . (int)$post_id . "'");
		
		foreach ($query->rows as $result) {
			$post_category_data[] = $result['category_id'];
		}

		return $post_category_data;
	}
	
	public function getPostCategoriesNames($post_id) {
		$post_category_data = array();
		
		$query = $this->db->query("SELECT cd.* FROM " . DB_PREFIX . "blog_post_to_category  p2c LEFT JOIN " . DB_PREFIX . "blog_category_description cd ON (p2c.category_id = cd.category_id) WHERE p2c.post_id = '" . (int)$post_id . "' AND cd.language_id='" . (int)$this->config->get('config_language_id') . "'");
		
		foreach ($query->rows as $result) {
			$post_category_data[] = $result['name'];
		}

		return $post_category_data;
	}

	public function getPostRelated($post_id) {
		$post_related_data = array();
		
		$query = $this->db->query("SELECT * FROM " . DB_PREFIX . "blog_post_related WHERE post_id = '" . (int)$post_id . "'");
		
		foreach ($query->rows as $result) {
			$post_related_data[] = $result['related_id'];
		}
		
		return $post_related_data;
	}
	
	public function getTotalPosts($data = array()) {
		
		$sql = "SELECT COUNT(DISTINCT p.post_id) AS total FROM " . DB_PREFIX . "blog_post p LEFT JOIN " . DB_PREFIX . "blog_post_description pd ON (p.post_id = pd.post_id)";

		if (!empty($data['filter_category_id'])) {
			$sql .= " LEFT JOIN " . DB_PREFIX . "blog_post_to_category p2c ON (p.post_id = p2c.post_id)";			
		}
		 
		$sql .= " WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "'";
		 			
		if (!empty($data['filter_name'])) {
			$sql .= " AND LCASE(pd.name) LIKE '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "%'";
		}
		
		if (!empty($data['filter_author_id'])) {
			$sql .= " AND p.author_id = '" . (int)$data['filter_author_id'] . "'";
		}
		
		if (isset($data['filter_status']) && !is_null($data['filter_status'])) {
			$sql .= " AND p.status = '" . (int)$data['filter_status'] . "'";
		}
		
		if (!empty($data['filter_date_added'])) {
			$sql .= " AND DATE(p.date_added) = DATE('" . $this->db->escape($data['filter_date_added']) . "')";
		}
		
		if (!empty($data['filter_date_modified'])) {
			$sql .= " AND DATE(p.date_modified) = DATE('" . $this->db->escape($data['filter_date_modified']) . "')";
		}

		if (!empty($data['filter_category_id'])) {
			if (!empty($data['filter_sub_category'])) {
				$implode_data = array();
				
				$implode_data[] = "p2c.category_id = '" . (int)$data['filter_category_id'] . "'";
				
				$this->load->model('blog/category');
				
				$categories = $this->model_blog_category->getCategories($data['filter_category_id']);
				
				foreach ($categories as $category) {
					$implode_data[] = "p2c.category_id = '" . (int)$category['category_id'] . "'";
				}
				
				$sql .= " AND (" . implode(' OR ', $implode_data) . ")";			
			} else {
				$sql .= " AND p2c.category_id = '" . (int)$data['filter_category_id'] . "'";
			}
		}
		
		if ($this->user->getGroupId() != $this->config->get('blog_admin_group_id') ) {
			$sql .= " AND p.author_id ='" . (int)$this->user->getId() . "'";
		}
		
		$query = $this->db->query($sql);
		
		return $query->row['total'];
	}	
	
	public function getTotalPostsByAuthorId($author_id) {
		$query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "blog_post WHERE author_id = '" . (int)$author_id . "'");

		return $query->row['total'];
	}
	
	public function getTotalPostsByLayoutId($layout_id) {
		$query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "blog_post_to_layout WHERE layout_id = '" . (int)$layout_id . "'");

		return $query->row['total'];
	}
}
?>